Tobacco is a:
Correct answer: B. Short day plant
- A. Long day plant
- B. Short day plant
- C. Day-neutral plant
- D. Intermediate plant
Explanation
Tobacco is classified as a short-day plant. These plants require long periods of darkness and shorter daylight hours to initiate flowering. This characteristic is typical in plants that flower in early spring or autumn. On the contrary, long-day plants require longer daylight hours to flower, day-neutral plants do not depend on photoperiods for flowering, and intermediate plants have varying requirements not strictly tied to day length.
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About Plant Growth Regulators
Plant growth regulators are chemical messengers that control growth, development and responses to the environment. The topic covers auxins, gibberellins, cytokinins, abscisic acid and ethylene, including cell elongation, apical dominance, tropisms, seed germination, dormancy, fruit ripening and leaf fall, with growth promoters distinguished from inhibitors.
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